International Business Machines Corporation. (1967). Datatext operator's instruction guide: Information marketing. IBM Trade Corporation.
Chicago-referens (17:e uppl.)International Business Machines Corporation. Datatext Operator's Instruction Guide: Information Marketing. New York: IBM Trade Corporation, 1967.
MLA-referens (9:e uppl.)International Business Machines Corporation. Datatext Operator's Instruction Guide: Information Marketing. IBM Trade Corporation, 1967.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.